Upgrading A 250 L-6

[snowman4839]

Hey guys. I'm 15 and I just got my first car. Its a 69 Buick Special Deluxe with a Chevy 250 straight six. I was thinking about putting a 4-barrel, headers with dual exhaust, and if I need to (which I probably will) get a heftier cam. I was also thinking, if I have some extra time and money this summer, getting a 292 crank and rods and putting that in for more displacement and higher compression (would this need premium fuel?). Any ideas and or tips?

4 barrel intake - http://www.summitracing.com/parts/OFY-5416/
and for a carb, I have an old quadrajet off of a GS 350 but I need a $100 adapter plate and get on the fast track to learning how to rebuild it. It is also probably a 600cfm. Would that much cfm be too much for such a small disp.? Or I could get a smaller 4 barrel holley that would most likly be a 400-500cfm that would bolt right on and I wouldn't have to spend the extra $100 for the quadrajet adapter plate.

headers - http://www.summitracing.com/parts/BIG-11510FLT/
and I would get some 2.5" and weld it up with two of these mufflers

and one of the High energy series cams if I need it

Looking for ideas, tips, and feedback. I know it's a buick but the guys on the buick forums weren't helpful with a chevy engine.

-Thanks

[zeeklu]

These guys will help.http://www.inliners.org/ Chris

[Shaky]

Congrats on your new car. I've had several '60s vintage GM cars with 250s and had a lot of fun with them.

To my knowledge, you can't put a 292 crank in a 250 block. The stroke is just waaaaay too long. The 194-215-230-250 are sister engines, but the 292 is just a cousin.

I had a 250 in my 66 C10 with a Holley 390, headers, and a hotter cam. It made good power, especially when the secondaries opened-up. Be prepared to do a lot of carb tuning, because most carbs are not close to dialed in to a straight six when you start out.