need more power - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fair1138 · 08-03-2011, 08:07 PM

I picked my truck up in 2006. I’ve done a lot of working getting things right, and it runs good. But being a typical guy, good is never enough. I need some advice what I can do to make some power. I didn’t build the engine, but I’ve done a lot of external work and research on it. It’s a 454 #3999289, LS6 heads #3994026, gear drive, roller rockers 800CFM Holley Carb; jets are 71/75 and Trick Flow ceramic headers 1 7/8” that flow into Flow Master 40; 2 ½ outlet. All this connects to a Turbo 350.
Some time ago I took it to the track and it ran min 13’s. Now if I did my math right and guessing the truck weights 4000lbs, that’s maybe 340hp. Seems awful low to me. I have no idea what cam or pistons I have. I wanna do some work this winter on it, but looking for advice on what I should do. Iam married, which means I have a budget…lol. I'll post any pic you need also...thanks

VWBeamer · 08-03-2011, 08:12 PM

what rear gear do you have?

fastwillie 696969 · 08-03-2011, 08:13 PM

run 200 hp shot of nitrous

**70cst** · 08-03-2011, 08:14 PM

Just a thought but how about making your truck lighter...Light in weight equals faster.

fair1138 · 08-03-2011, 08:17 PM

When I went to the track, I had 4:56 gears, now I have 3:73. Gonna try to go back to the track next week.

Fldawg · 08-03-2011, 08:22 PM

Quote:

Originally Posted by 70cst

Just a thought but how about making your truck lighter...Light in weight equals faster.

i agree....these trucks are little rocketships with a big motor in it , try a blower but that's not cheap either.lighter might be the cheapest way

08-03-2011, 08:07 PM	#1
fair1138 Registered User Join Date: Oct 2006 Location: Rochester, NY Posts: 41	need more power I picked my truck up in 2006. I’ve done a lot of working getting things right, and it runs good. But being a typical guy, good is never enough. I need some advice what I can do to make some power. I didn’t build the engine, but I’ve done a lot of external work and research on it. It’s a 454 #3999289, LS6 heads #3994026, gear drive, roller rockers 800CFM Holley Carb; jets are 71/75 and Trick Flow ceramic headers 1 7/8” that flow into Flow Master 40; 2 ½ outlet. All this connects to a Turbo 350. Some time ago I took it to the track and it ran min 13’s. Now if I did my math right and guessing the truck weights 4000lbs, that’s maybe 340hp. Seems awful low to me. I have no idea what cam or pistons I have. I wanna do some work this winter on it, but looking for advice on what I should do. Iam married, which means I have a budget…lol. I'll post any pic you need also...thanks

08-03-2011, 08:12 PM	#2
VWBeamer Registered User Join Date: Jun 2011 Location: GA Posts: 281	Re: need more power what rear gear do you have?

08-03-2011, 08:14 PM	#4
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,365	Re: need more power Just a thought but how about making your truck lighter...Light in weight equals faster. __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

08-03-2011, 08:17 PM	#5
fair1138 Registered User Join Date: Oct 2006 Location: Rochester, NY Posts: 41	Re: need more power When I went to the track, I had 4:56 gears, now I have 3:73. Gonna try to go back to the track next week.

08-03-2011, 08:13 PM	#3
fastwillie 696969 ~Rest In Peace~ Join Date: May 2005 Location: CALIFORNIA NOR CAL Posts: 9,707	Re: need more power run 200 hp shot of nitrous __________________ is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.