Matsumoto

i have a FI 13b and want to run carbs on it..........basically what i want to knw is how much power can be made from this setup, none ported 13B with holly 650 carb, RB intake manifold,extractors,10 pound flywheel and steel clutch and current upgrade maybe msd???

clean85owner

What year 13B? What kind of exhaust? 4 port or 6 port?

Matsumoto

its a 4 port, originally fuel injected not sure of the year and the exhaust is like a srteet racing exhaust

rxguru

I enjoy the holley. It makes good power and its easy to fix. Go direct fire ignition, if you have a dizzy. You'll need an extra coil and ignitor.

Matsumoto

i just found out yesterday that my engine is a 6 port 2nd generation engine and my RB intake system wont work with it will have try and make an adapter plate of some sort how well will that work out??

trochoid

iTrader: (6)

Depends on how well you make the adapter plate. Most of the wrap around 2-barrel intakes are for a 12A, but there is an adapter to mount it to the 13B. Those have been around for years and seem to work well.

diabolical1

iTrader: (3)

why not sell your manifold and buy and a 6-port manifold from RB if you don't want to get rid of the Holley?

rxguru

yeah, just get the right part. The six port intake will come in handy as it was the most widley produced engine.

Matsumoto

My manifold might take 2 long to sell cause there are not alot of plp running roach's where i am and the one's that are running them already have the parts they want.............so i guess its the adapter for now is there an adapter that i can purchase or is that i have to visit the machine shop??

diabolical1

iTrader: (3)

well, i don't know of any 4-port-to-6-port adapters. not to say that they don't exist, but i don't know of any.

Sammymatik

If you've got a 6 port engine why not run the fuel injection?

I know I saw some of the dynos from guys with stock port S5 engines putting down 150 to the wheels with exhaust intake and a fuel computer.