New 408 E85 build using the Trick Flow Power Port 190 heads

I have a stock stroke 360 thats barely over 10 to 1
Cam is a hair big, but its 260/264 on a 106. Its 565 lift. Drive it everywhere. Runs 11.20’s on pump gas at 3300 pounds
You have lots of compression and a 4 inch stroke crank. 4 inch cranks eat up a ton of cam duration. Your motor “ could” make 600 ponies and be a streeter. But not with that camshaft
That cam calls for a 115/ 325 spring. Thats for a really mild lobe. As an example mine needed 135-140. No requirements for break-in. Its mild
Not trying to dog ya, just leaving lots of power on the table with the compression and nice heads.
It will run fine the way it is. Enjoy.


I'm 255/255 at .050 on 105 LSA on 340 inches. I have that much at .050 so I can shift at 7k. If I was going to wind it up, I'd need more duration. That's on a 3.313 stroke and ported iron heads.

BTW, the seat timing on my cam is 281-281 so it's a fairly fast lobe.