Input please
AN R31 SKYLINE HOUSING?? That is exactly what I put in my AP back in 03!! great minds think alike!!
Only downside is 411 is as deep as you can go with a BW housing.
Im not shore id change the carb if I were you, have you looked at plug color?
My best mates pink R/T mock has a 360 I tuned, the 750vac on that thing liked #76 at this time of year.
We ended up putting an eddi 750 on it.
I like the eddi carbs for mild preformance, I cant say how they perform at the track tho.