No, Just need to have it tuned correctly....You could probably get away with using the 19 lbs. depending on your fuel pump, but the 24's will work also
with stock displacment h/c/i and bolt ons all you need is 24 pounders unless it runs lean on the top end. also it is a must to replace the fuel pump, to like a 190lph, unless you are planning on a power adder, then a 255 would be a good choice