Re-testing 318 (dyno) after changes on Tues

Ok so the testing went well and 4 actual changes were made.

1. Decking the block .055" which raised comp 1 full point. Now @ 9.125 - 1

2. Replace Mopar Perf cam with a Comp 252H (quite a bit smaller)

3. Replace HV oil pump with SV oil pump

4. Test with customers 1 5/8" stainless headers with 3" collector

From the cam breakin to the last pull the engine ran so much better it was hard to believe it was the same engine. Idle vacuum was now at 14-15" @ 750-800 rpm , jetting wasn't touched from the last test session and even though it moved less air through the turbine it still made more power everywhere. I checked cranking compression and new power was going to be good when the gauge revealed 170 psi instead of 135 psi. Oil pressure was a much more reasonable 60-70 psi now. The pretty headers which I am completely impressed with turned all kinds of pretty purples and blues.

The first pull from 3000-5000 was impressive with 347 ft/lbs @ 3000 rpm a full 40 ft/lb gain!
317 hp was showing @ 5000 rpm.

A whopping 6 pulls later we were done with some pretty good results. We pulled it as low as 1900 rpm and 302 ft/lbs was observed.

Years ago I never would have believed such a small cam (206 @ .050" ) would have made anywhere near this kind of power with this tame personality. J.Rob