ok, I have a low-compression 400 right now, with a Weiand Stealth intake. I'm exploring options, laying the foundation of the project. I'm thinking of going with Dart Sportsman II heads to replace my crappy 882's. I also want to put in the Comp Magnum 270H in place of the peanut in there now. Since I have such low compression (around 8.3:1) I was thinking about looking into the Vortec carb blower kit, since I want hood clearance and a stock look. Any ideas on what this will run when I put the Demon DP, 3.42 posi rear, and 2500 stall in it?

Thanks,
Crash :rockon:

 

They are not very sturdy when it comes to holding up to a lot of power. So I'm gonna say don't go blown. Do a good rebuild on the shortblock if it's not fresh already, Put some New heads on it, with a 64-67 CC chamber, and bring the compression up around 9.5-10 run something on the lines of a comp XE 274 cam, and a better intake like either an air gap or a good ole performer rpm.

Do That to it, and you'll never recognize it as the same motor, those 3.42 gears and a 2500 stall converter will be very nice on the street. may have trouble keeping tranny's behind it if you don't bulletproof a 700R however.

Depending uppon the budget you could use Either vortecs, or the pro-action lightning heads. whatever you use you will need steam holes.

a solid setup like that with a decent exhuast should pull low 12's all day at least. (round here anyway we are very close to sea level)