Spectre Adapter

Ruper

Member
Ok I thought I had a sq bore mani, but the one I had is for another engine. Wont work. I purchased an adapter sq-spread (spreadbore mani on the truck). Looks like I have two options. Use the 4 hole transision on, which looks to have some hard edges that I should smoth out, or use the open adapter, but would that be an issue with fuel falling on the manifold portion in between the 4 intake holes in the spreadbore.

Or will mani vacuum pull the fuel where it needs to be?
I know this isn't the best setup but until I get a chance to purchase and install a squrebore mani, that's what I'm going with. Also May go fuel injection later, if I build a garage lol, to do all the work.

Looks like both will work to route the fuel, but which one should I use?

345 slight cam, tq to Holley 1850 conversion.

spectre performance - official site
 
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