Super Slow - there are more than a few people here making 400 or higher, with that cam as well. Valvetrain is not the best I admit - but it works, and I don't think it needs super duper stuff when its peaking so early.

Combination EX612 single valvespring kit with locks and retainers

Comp Promag NSA 1.6 roller rockers

1994 hardened pushrods

GM flat guideplates

stock lifters

I have a loud rocker on the passenger side, I am going to adjust it before the track, but I doubt there is a hidden 20 hp or anything...would be nice tho.

 

847
Stage 2 heads
1.52 ProMag rockers
BBK Shorties


What do you think I'll get outa that?

 

When you say stage 2 heads, what heads exactly? If they are LE or AI, then I'd say you have a shot at 380 - 390, even with the shorties. If they are a local porter, I'd say 360 - 370. I know it sounds weird, but I've seen some supposedly good porters ruin a set of heads, and we all know that peak flow numbers don't mean everything.

 

Local... He didn't flow them past .600 lift, he knew what cam I was going with...


Intake:
.100 / 71
.200 / 141
.300 / 201
.400 / 233
.500 / 254
.550 / 262
.600 / 266

Exhaust:
.100 / 64
.200 / 119
.300 / 149
.400 / 174
.500 / 188
.550 / 194
.600 / 207