FiTech EFI Tuning Forum

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Go street 400hp and 4 pin hei question

Installed the efi on a 64 valiant with a 360 in it.   Car did start but runs like shit...did with carb too.  Pertronix is all over the place with spark.

I have a 2 wire mopar electronic distributor and I plan to wire in a 4 pin hei module.   (Not enough room because of hood torsion bars for an all in 1 hei dizzy) .   I hear that hei can make dirty tach signal..which I'm sure efi wont like...so should I run a tach filter inline with the fi techs trigger wire?  Or not necessary.  Trying get this thing going...but need to order some stuff..

 

Advice and ideas?