I recently purchased a modified SFI Throttle Body for the Camaro-Firebird 3.4L L-32 207 CID engine via eBay that has been bored out to 55MMs and had the axial shaft halved to increase the CFM airflow through the TB. Once I got it, I measured it carefully to confirm the larger dimensions and then also measured the TB opening on the stock SFI Intake manifold, which showed as only 52mms wide along its NS/EW plane. With the very real difference of the 3mms, my concern is that installing this new, modded TB will be for naught, unless I have my machinist widen the neck on the Intake Manifold to allow them to blend in better. I would appreciate any insights as to whether my concerns are well founded. The images and measurements I made of this modifed TB and the stock SFI UIM can be seen on my photo bucket site, here:
Thanks in advance for any input and assistance with this...
Thanks in advance for any input and assistance with this...
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