Est. 3500 lbs. race weight
388"
12.11:1 CR
Heads flow stock valve sizes
Lift Intake Exhaust
0.200 134.0 100.0
0.300 196.0 135.0
0.400 243.0 159.0
0.500 264.0 180.0
0.600 268.0 191.0
0.700 271.0 196.0
Hooker LT's
Most bolton
3500 Vig TQ
3.73 gear

Any thoughts?

 

Your heads flow similar to mine.

I have an XE 230/236 112

11.3:1 compression.

Pulls like a banshee.

 

What wrong with the GTP-6 that you had? That should be a good cam for the combo. I have decent results with my 355 and that cam.

Later
Matt

 

Well, the cam itself looks to be crap. Ground poorly.

So if I cannot resolve the issue with GTP, I am looking into other cams.

 

I second Gripenfelters choice......