With that combo, spend the money elsewhere. There is little to gain in a properly set H/C/I setup 306.
Take the money you don't spend on the tweecer or pms, sell your windsor jrs. and your E cam.
Put the money together, get some Tw's or afrs, a custom cam, and you'll get another 40rwhp.
Istead of maybe 5 from a 500$ plus tweecer.
No point in having a 12second car with $1000 in tuning equipment, when everyone else gets there without it.
People confuse fun with usefulness with these tuners. Some people make their cars worse than better.