are these anygood or make a difference over stock? just wondering before i dump 400 on them. i also saw some edelbrock aftermarket ones also, if anyone run's these or knows a better setup over stock feel free to let me and everyone else a heads up, thanks all.

tpi runners on youre tbi motor???

post a website with the specs

who knows


but if you have tpi change your cp

ok, so some of you may not know whats going on....im swapping to TPI so no more TBI. anyways, so thats why im wondering if these are any good


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what do you mean (new to this)

The Arizona speed+marine/TPIS runners are the best out of the box (TPIS just charges more) but you may have to be patient waiting to get them. SLP's are decent and can be modified to flow quite well. The Accel are ok, but if it was me I'd be looking for some SLP's over those or spend that on the ASM instead. Best thing about the ASM is they look stock so no headache when you head over to the red tape parade at the referee.

In my searching a few months ago. The TPIS?? ones got alot of ones made wrong and had vac leaks.

I just installed some used SLP's and didnt notice alot of difference. I still need to match my base though.

hmm so just a slight difference eh? but with these aftermarket ones you also have the option of porting right? like more room available over stock im sure if we match our base with the runners it would be a different story.

thanks for the input

The SLPs you can port... and I think accells you can to.

The ASM and TPIS, you can NOT port. They are made to look stock.

Gathering parts to match my base in the next few weeks. Will let you know then

i have the accel ones, but i never had stock ones to compare, i like them, they look stock, and i ported them out, no problem pulling 5500 rpm's