302 h/c s/c build.

Rafas550 · Jan 29, 2019

I’m new to the forum but I’m currently building my 67 mustang with a 302 from a mountaineer with trickflow 190cc 56cc 11r heads, f303 cam, scorpion 1.6 rockers, 1 5/8 headers but I’m debating on which exhaust set up to run as far as piping size. Can anyone help? I’m stuck between 3” or 2.5”. Will be running both 91 pump gas and e85. Not sure if this is the right place to post so sorry if it’s not.

a91what · Jan 29, 2019

2.5 is plenty large enough for dual exhaust.
91 and E85, this thing carb or doing a fuel injection setup?

Rafas550 · Jan 29, 2019

a91what said:
2.5 is plenty large enough for dual exhaust.
91 and E85, this thing carb or doing a fuel injection setup?

Running a holly hp efi with a gt40 manifold, -10 fuel feed, -8 return. Aeromotive fuel rails. Vortech v-2 si blower 70mm Tb and just some 47lb injectors for now.

a91what · Jan 29, 2019

Why spend a butload on the standalone ECU and use the fcam? Lol. I do alot of standalone tuning and really like the more affordable, more capable megasquirt stuff. (Only thing I have against the Holley is you have to use all there proprietary extras if you want boost control vvt ect.)

Sounds like a good starting point so far. My advice, ditch the cam and get a better one.

Rafas550 · Jan 29, 2019

a91what said:
Why spend a butload on the standalone ECU and use the fcam? Lol. I do alot of standalone tuning and really like the more affordable, more capable megasquirt stuff. (Only thing I have against the Holley is you have to use all there proprietary extras if you want boost control vvt ect.)

Sounds like a good starting point so far. My advice, ditch the cam and get a better one.

I was just worried about piston to valve clearence since it’s a stock block and all. I’m basically prepping it so when I go with a 408 or something it’s set for it just new cam and bigger blower. And my tuner is picky ‍. If he even tunes it. I’m really looking for a reputable fox body tuner because I wanna put this car to the test. I know this guy is good but idk sometimes lol. does Mega squirt have more capabilities? I’m running ls coil packs as well with a holley dual sync distributor.

a91what · Jan 29, 2019

Obviously don't take anyone's word for it do some reading and some research for yourself but anyone using a stand alone should be able to tune the car themselves it's not that difficult once you get started. Look at and MS3 pro It will be able to do everything you want to do and then some you can wire anything you want to it it's about as flexible as it gets that thing will even run VVT on all 4 cams on a new Coyote motor

Rafas550 · Jan 29, 2019

a91what said:
Obviously don't take anyone's word for it do some reading and some research for yourself but anyone using a stand alone should be able to tune the car themselves it's not that difficult once you get started. Look at and MS3 pro It will be able to do everything you want to do and then some you can wire anything you want to it it's about as flexible as it gets that thing will even run VVT on all 4 cams on a new Coyote motor

I might tinker around with it myself that for a bit. I have general knowledge on tunining so I’m sure with enough driving and data logging I can get it down. And adjust per track conditions.

a91what · Jan 29, 2019

Check and read around in our digital tuning forum, lots of guys doing there own tuning.

a91what · Feb 5, 2019

Any progress?

302 h/c s/c build.

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