Great point Doug, it was a bit of an impulse buy, at this time the car is a daily driver and I thought that the cnc gmpp heads would offer me the best bang for the buck with 0 downtime. I guess ultimately I wanted the heads to complement the ported intake and new cam giving me power throughout the rev range. My dad and I talked about 'finishing' the engine-DOD portion of the build up before moving on. I feel that a 3600 stall would only benefit me at the track and might lose me some at the moment mpg. I plan on a converter/trans cooler next year. It was a tough call Rick Crawford had a PTC he offered me that would be perfect, again a bit of an impulse but it took me 4 years to get a converter in my Grand National.
Doug do you have porting/mill work done?
That was Ken (Dousail2) that was responding but I'll jump in! My heads are ported by Rick but not milled as I'm supercharged. I would agree on the stall, it will definitely get you more at the strip. On the other hand, putting the heads on now while the engine is apart anyway is not a bad way to go but pricey compared to the stall. I think the stall will not hurt mpg too much if it's fairly tight but Rick could comment better than I on that. I don't mind a stall that it tight so it's not revving all over the place from a stop as it does with a loose one. A tight one is not bad; I rode in one tonight that was really good.
2009 Hot White G8 GT, CTS-V v1 fronts, Camaro 20's, BMR Sways, Eibach Springs, Rear Cradle bushings. GXP FE3's, BMR rear susp. Kooks 1 7/8 LT headers, RCR custom 3” exhaust, ported LSA blower, 2.38 pulley; Ported heads and TB; LS7 MAF, Racetec pistons, Scat rods, CTS-V crank; FAST 85 injectors; RCR Lunati cam: 219/237 .612/.601, 114 +2 LSA. CTS-V pump/VaporWorx cntlr. Built trans, Methanol injection. Rick Crawford built and tuned. Best 1/4 9.68 @142, 1.42 60'.