hello--sorry to jump in...I recently purchaced a edelbrock manifold c26 2x4 thinking my holly 1850's would fit. NOT. Therefore, I'm looking for 2-quadrajets that will bolt up to this manifold. I'm thinking around the 350 cfm range. Going on a ssb 327 mild cam, iron stock heads...Any suggestions? Oh, manual choke is my preferance. bolt pattern is approx 4 1/4 X 5 5/8..I would contact elderbrock but I'm sure they would recommend their brand..All suggestions welcomed..BTW--Have an extra holley 600 cfm 1850-4 if you go with holley...