I'm building a motor for my '81 and I'm using a 6 port 13B out of a FC (S4). At the moment I've only got the shortblock and I'm having it street ported and rebuilt. However to save head aches and ruling out all electronics. I've decided to go dual carbs on this motor. But I have a few questions. What do I do about the 5th and 6th ports because I'm not sure if I still need the actuators or if they'll even work. Also won't the crank angle sensor thats on it already need to be replaced with a distributer or do I have other options? I'm shooting for 200-220hp out of this motor running dual carbs and a massive streetport. Any help on these issues will be appreciated.

 

never heard of dual carbs, but yeah you should get a dizzy out of a gsl-se and the 1st gen coil packs, not a hard conversion. and on the 5th and 6th ports, just wire them open..

 

I'm not to thrilled on the thought of wiring the ports open. Will they still have the same effects as wiring them on the standard EGI setup? And what is a dizzy?

 

a distributor, my brotehr did my setup, efi-45dcoe weber. ill call him tomorrow and ask him what he did with my 5th and 6th ports.. im pretty sure he wired them open,. the only draw back is NO low end power

 

chances are with whatever manifold ur gonna get, unless u custom fab one, u won't have provisioning for the 5th and 6th ports... itd be best to take them out and leave them open all the time....

 

So should I run a S4 EFI lower manifold and port actuators and mount the manifold and carb on to that?