[TR] TR4a manifold swap

[Earl Bowman]

Thanks to Randy and Pete for your input. I should have mentioned I'm already
running a TR4a intake manifold with the factory PCV. Does anyone think there
would be a noticable gain from switching to the dual outlet exhaust system
from the center frame member back, or would the two-into-one restriction at
the center member render it pointless? Also, any performance per
dollar thoughts on the TR4a exhaust manifold vs. a tubular header? 
 
Thanks,
 
Earl