hey just hit 15.5's awhile back. but havent had the time to tell you all. 305 is pretty much stock. read signature for more details. its all in the suspension.

ryan.

p.s. my 60ft time is still 2.1 average. how can i get that down to about a 2.0 or 1.9? more hp/tq ? or drag radials?

 

Still only hitting 15.5 with that 3.73 posi? I would think you would be down around 15 flat or so with that set up. Dang these heads and peanut cams!

 

Its not the heads its the peanut camshaft.

 

Its both. the cam is 'worse' but I have the dyno graphs that show a cam that should pull to 6k, putter out at 4500.

 

I have dyno sheets from a 1994 chevy truck with a 350 TBI and stock 193 heads and a cam that should die out at 4,500 rpm according to mellings pull clean to the 5,300 rpm shift point. The peak HP was at 5,300.

 

 

The truck TBI cam was, IIRC, 194/202 duration flat tappet with unknown lift but certainly higher than the peanut; the peanut cam is 178/194 duration roller tappet with 0.350"/0.384" lift. The cam difference can partly explain why the 350 peaks higher than the 305.

What I cannot explain is why the 350 you mention peaked at 5300 rpm. That engine should have only made 210 fwhp from the factory, or around 170 to 180 rwhp at best, with 172 being reasonable for the automatic and 178 for the manual trans.

What was the peak rwhp on that 350 and did it fit within the above range? If it didn't, then it probably wasn't pure stock. FWIW.

 

Thats the one I mentioned a while back that only had Ultimate TBI mods and a Mellings CL-MTC1 cam kit in it. Not bonestock but still plenty mild.

My point was to show that its not the heads as much as the cam. RWHP was 234 with that cam.

Here is a clipping.

In an above post I mentioned the specs of a friends 94 350 TBI truck that I helped modify. The cam was a basic, cheap RV cam that ended up with good results even on the stock tune. All that was done is advance the timing some and add fuel pressure. Car Craft got like 185 RWHP out of a bolt-on 350 TBI truck engine without going into it. On the otherhand this truck was 234 RWHP and 295 ft/lbs to be exact. Very little was done to this truck, RV cam, raised fuel pressure, headers, ultimate TBI mods, open element, and an Edelbrock intake (might as well since it is off for the cam swap). The truck runs great despite the mods and the factory ECM tuning, in fact he gained about 1-2 m.p.g. over stock.