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oldman · 06-21-2018, 04:34 PM

Pray has a pretty impressive dyno of ported stock to ported MSD, I would not expect too much from 1/8 header change and stock cubes but who knows? I had my own ported TB, I went to a Katec 103 mm TB. IMO it is more of a tuner issue and each car is a little different. I never dynoed at all so only have SOTP evaluation. IMO the MSD and 103 TB was worth 5 to 10 on the top with no noticeable sag in the midrange on E85. I did the heads, cam and supercharger all at the same time so I can't tell you what a ported MSD did with just heads and cam.

06-21-2018, 04:34 PM	#2
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,346	Pray has a pretty impressive dyno of ported stock to ported MSD, I would not expect too much from 1/8 header change and stock cubes but who knows? I had my own ported TB, I went to a Katec 103 mm TB. IMO it is more of a tuner issue and each car is a little different. I never dynoed at all so only have SOTP evaluation. IMO the MSD and 103 TB was worth 5 to 10 on the top with no noticeable sag in the midrange on E85. I did the heads, cam and supercharger all at the same time so I can't tell you what a ported MSD did with just heads and cam. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.