Getting the "Great Pumpkin" (355 Gen 1 SBC) together ... TH400 trans done. Blue's 355 SBC is taking time. Just getting the pushrod guide plates right has been a slow process to get right (min .oo5" clearance to heads & guide plate & center rollers on valve stems). Must have taken them apart three times or more a pair (per cylinder). Zero lash isn't too bad, all new parts. Need to get 'er right, to minimize adjustments after getting this "pumpkin" running. Then had trouble with primer tool. It would not hold pressure and prime. Note the blue "Scorpion" was too long, the silver one is Jegs and worked fine.