That is close to the cam numbers I have been looking at, but I wasn't sure I was going to get the idle vacuum and low end I want to try to keep. That is why I was looking at the smaller lobes and hope that they would hang on to get the top end I was looking for.
The heads will have numbers that or better than the AFR 190 Vortec head, but I am also going to focus on porting the manifold to "try" to keep up with the head flow.
One of my biggest areas of concern is at what point to advance cam timing to get low end or just use a smaller lobe that will carry into the higher RPM range I am looking for?
Remember, you can't really compare .050" duration of solid rollers, with Flat tappet cams.
The seat duration on the 236/240 roller I suggested is equal to a
230/234 in a solid flat tappet, or
228/232 in a hydraulic flat tappet, or
230/234 in a hydraulic roller.
You should see about 14" @900rpmLilRacr wrote:How is the vaccum and street manners pulling at 2k rpm?
Not always. Sometimes it just wants one of the opening or closing spots somewhere else.Am I on the correct thinking that if I need to advance the CL of the cam I need to go smaller on the seat and .050 duration?
What is the seat duration of this cam, do you include lash in that number, I do need to keep it on 93 and if the worlds align and I hit the combustion combination I want possibly 87 octane.
LilRacr wrote:Is there anything you see that should be changed to make the whole combination better? ?
CamKing wrote:Yea, go to a 3.750" stroke.
Yea, go to a 3.750" stroke.