The overall lift isn't so important as the lift during overlap when both valves ae open at piston TDC.The 235/261 intake valve can hit the piston if clearance aren't checked carefully.A cam like the stock Corvette cam (261 cam too)or The Howard's M4F, have around .405-.428 lift, and will generally cause no problem on a zero deck height block if the head isn't shaved much.
