For those of you who are not familiar with the 731 it's off an e30 323 which was never imported to the U.S. This one came off a known runner with 116k miles and included the 323 intake manifold. Much has been written about different the pros and cons of head options for an ETA so I'll leave that debate for elsewhere.
The head is in the shop now and will be getting all new +2 valves, new intake guides, inner valves springs (so duals for higher revs) and a mild porting. I'll be using the stock 323 cam which is a 260 and the stock 323 intake port matched to the head.
The other upgrade in this phase will be a B25 TB which is about 10mm larger than the ETA or the 323 (which happen to be the same bore).
The 323 intake doesn't quite have enough meat on it at the bottom to fully match the b25 TB but it's close enough and I'll probably build up the manifold end of the TB to eliminTe the step
The head is in the shop now and will be getting all new +2 valves, new intake guides, inner valves springs (so duals for higher revs) and a mild porting. I'll be using the stock 323 cam which is a 260 and the stock 323 intake port matched to the head.
The other upgrade in this phase will be a B25 TB which is about 10mm larger than the ETA or the 323 (which happen to be the same bore).
The 323 intake doesn't quite have enough meat on it at the bottom to fully match the b25 TB but it's close enough and I'll probably build up the manifold end of the TB to eliminTe the step
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