1995 GTX 657x pop off range

[blue06van]

I see a large area for pop off vaules for 1995 GTX 657x. What is correct range? What is optimal range? 1995 GTX 657X 270500259 270500258 BN-38I (SB) MAIN-132.5 PILOT-75 1.5 270500242 (D) 19 - 35 LOW- 1-1/4 HIGH- 1/4 SHAFTS IN LINE

[SBT-Tech 1]

Re: 1995 GTX 657x pop off range

Pop off range 19-35 psi. You need to find optimal based upon engine compression, elevation, performance etc.

[blue06van]

Re: 1995 GTX 657x pop off range

Ok
Question:

19 to 25 compared to 26 to 35.

Which would be better at sea level ( Texas gulf coast) with a motor that 147lb compression in both cylinders.

Does lower pop off and a certain benefits compared to higher pop off?

[SBT-Tech 1]

Re: 1995 GTX 657x pop off range

Lower pop off = more fuel in lower rpm range.
I typically shoot for the lower numbers it is usually needed for hole shot.