Hello, I can recommend an excellent engine builder for you. XXXXX XXXXX of B&W racing in Walterboro SC. He's been building and racing for the past 25+ years. Does great work and is affordable. He's about an hour drive from sumter.
506 S Jefferies Blvd Walterboro, SC
I can also highly recommend Jumper auto parts and machine shop in Orangeburg, SC
597 Sellers St SE Orangeburg, SC 29115