have some questions about 350 performance parts

[ya it is a classic]

Originally Posted by blackedoutharley

If you have the "ramhorn" style manifolds you can run those, again depending on the other questions related to engine etc... with a good dual exhaust system. Don't run straight pipes, you will need backpressure and you'll get tired of the straight pipes quickly. Any reputable exhaust shop should be able to install a complete exhaust system in a couple of hours. I wouldn't go anything bigger than 2.5" pipes though... Don't let anybody talk you into spending $$$ for 3", its not needed.

Headers will flow better; my suggestion for keeping the ramhorns is in the interest of cost. There are too many other items that we don't know about your engine for me to advise this part or that part.

As far as the SM420: they will hold a lot of torque and HP provided you maintain them with fresh oil and remember that it is a truck transmission as previously stated. That said, I have (in my younger days) been able to bark the tires in 3rd.
See the video in this thread of my truck which still has the OEM sm420 installed. It also has Hooker full length headers and 2.5" exhaust with an "H" pipe installed.
http://67-72chevytrucks.com/vboard/s...d.php?t=473017

hey blackedoutharley your pickup sounds NICE! what mufflers are you running? also i found i couple high rise intakes(i have a 4in cowl hood) and one of the intakes is on ebay and theres no numbers and no maker but its a used aluminum and its like 27 bucks buy it now. think i should get it? also im reading a hotrod online article and there using a muther thumper cam in there 350 and its working good. that guys still got that cam so do you think it would be worth it? and i also found a couple HEIs on ebay(see links) which one would you recomend?
http://cgi.ebay.com/ebaymotors/SMALL...#ht_4708wt_968
http://cgi.ebay.com/ebaymotors/SBC-B...#ht_4664wt_968
http://cgi.ebay.com/ebaymotors/SBC-3...#ht_4079wt_951
-chad