59flatbedford (10/14/2009)
And yes i realize this would be kinda pointless on a street truck but i figured i ask just to see what you guys said.
I don't think it is pointless. In fact, it is quite fun!
A lot of guys like the Isky E4 for street use. To avoid loosing
all of your bottom end, I'd keep it below about 225ish degrees at .050".
John Mummert's new intake is available.
Any idea which heads you have? I'd look for some G or 113 heads for a naturally aspirated 292. They are two of the highest compression heads. With these on a .050 over 292, you will not be above 9:1; closer to 8.75. I'd at least install new stainless valves and hard exhaust seats. A port and polish can be expensive. Determine your goal before you spend money on that. If it's not necessary, it's a big waste of money. Roller rockers can help. I think I'm going to mess this explaination up but here it goes. They will open the valve faster, and farther. Even if your heads and intake can't flow any more at the maximum lift, they will be able to maximize the flow at lower lifts and better fill the cylinder. And, I think you pick up a little duration. But here again, rollers may not be worth the expense.
Install dual exhaust with headers or rams horn manifolds. When you're building the engine, take the time to set the proper clearance between the engine and the head. It varies slightly from builder to builder but you want around .045" clearance. This will maximize compression and reduce the engine's tendency to knock.
Lawrenceville, GA